Springbots: 3-in-1 Spring-powered Machines Age 6+ Christmas the best-selling workbook series

the best-selling workbook series

Create your favorite Villagers using the Aquabeads Animal Crossing: New Horizons Character Set

For little 'fairies' wishing for magic

kids can build models of these eight robots and experiment with them to see how each one uses the battery-powered motor and mechanical parts to move in a different way

players work together quickly to gather the fanciest jewelry

Springbots: 3-in-1 Spring-powered Machines Age 6+ Christmas the best-selling workbook seriesBuild a motorized robot, race car, and countdown timer, all that run without any batteries or electrical power! The secret behind these fascinating machines is a power source called a mainspring, a spiral shaped spring that stores up energy when wound up by hand, and then converts that stored energy back into motion when it discharges. The mainspring inside the robot turns gears which enable it to march forward on two legs. The race car zooms across